The M30 is a very flexible clarinet mouthpiece from Vandoren designed to produce sonority similar to the B40 mouthpiece but with easier sound production qualities. It is essentially the 5RV Lyre with a larger tip opening and a longer facing guarantees flexibility and roundness. This mouthpiece has an exceptional quality of sound. Vandoren mouthpieces are known for their high, uniform quality, among the best of the mass produced, and are especially popular among clarinetists. The Vandoren line is extensive. It covers all woodwinds and offers designs suited to a variety of playing and musical styles. The difference between Profile 88 and Traditional mouthpieces is in the exterior angle of the beak. Therefore, the musician is free to choose the model which suits his purpose in terms of best playing position, easiest sound projection, greatest playing comfort, and the most controllable and precise articulation. Vandoren has developed the 13 Series mouthpieces specifically for American clarinetists using A440 pitch.